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system operates correctly. Refer to the Bendix\King KT 76A Installation manual #006-00143-
0005 for performance specifications.
Detail Steps/Work Items Key Items
(1) Do a test of each control function. Refer to this Chapter
(2) Contact a local ATC center, ask for a
transponder check.
Follow the Instructions of the ATC.
Note: The encoder will not give an altitude output until it has reached its operating
temperature. The time taken varies with temperature. Approximate warm-up
times are:
From 21°C (70°F) 4 to 6 minutes.
From -18°C (0°F) Up to 10 minutes.
From -48°C (-55°F) 30 to 45 minutes.
A power interruption causes a further delay of up to 6 minutes.
DA20-C1 AMM
Navigation
Doc # DA 201-C1
Rev. 15 34-50-00 Page 213
30 Apr 2009
8. Remove Install the GNS430W
A. Remove the Garmin GNS430W
Detail Steps/Work Items Key Items
(1) Open the related GPS COMM circuitbreaker.
(2) Put a 3/32 allen wrench into the access hole
for the locking screw. Engage the screw.
See Figure 9
(3) Turn the screw counter-clockwise until the
unit disengages from the mounting rack.
CAUTION: DO NOT PULL ON THE KNOBS. DO NOT PRY THE FACE-PLATE.
YOU CAN DAMAGE THE UNIT.
CAUTION: DO NOT TOUCH THE CONNECTOR CARD AT THE REAR OF THE
UNIT. THE ELECTROSTATIC CHARGE ON YOUR BODY CAN
DAMAGE THE UNIT.
(4) Pull gently on the sides of the unit to remove
it from the mounting rack.
(5) Install the protective covers on the rear
connectors of the unit.
B. Install the Garmin GNS430W
Detail Steps/Work Items Key Items
(1) Remove the protective covers from the rear
connectors on the unit.
(2) Slide the unit into the rack. Engage the
locking screw so that the latch front lobe
touches the rack.
See Figure 9
(3) Turn the locking screw clockwise so that the
rear lobe engages the mounting rack.
CAUTION: DO NOT OVER-TIGHTEN THE LOCKING SCREW. YOU CAN
DAMAGE THE LOCKING MECHANISM.
(4) Continue to turn the screw until the unit is
fully installed in the mounting rack.
(5) Close the GPS COMM circuit-breaker.
(6) Do a functional test. Refer to paragraph C.
Navigation
DA20-C1 AMM
Page 214
30 Apr 2009 34-50-00 Doc # DA 201-C1
Rev. 15
C. Garmin GNS430W Adjustment/Test
If possible, do an operational flight check after the radio has been replaced. Alternatively, use a
GPS COMM test set to make sure that the system operates correctly. Refer to the GNS430W
installation manual for performance specifications.
WARNING: DO NOT OPERATE THE GPS USING AN OUT-OF-DATE DATABASE.
OUT-OF-DATEDATA CAN CAUSE A FLIGHT SAFETY HAZARD.
Detail Steps/Work Items Key Items
(1) Do a test of each control function. Refer to 400W Series Pilot’s Guide and
Reference to test each control function.
(2) Make sure that the database date is valid. Once the database has been
acknowledged, the instrument panel selftest
page will appear.
Refer to 400W Series Pilot’s Guide and
Reference for Instrument Panel Self-Test.
D. Data Base Loading
The GNS430W has two data card slots on the face of the unit. The NaVData card is inserted in
the left-most slot and the second slot is provided for the terrain card. Refer to 400W Series
Pilot’s Guide and Reference for NavData card use.
DA20-C1 AMM
Navigation
Doc # DA 201-C1
Rev. 15 34-50-00 Page 215
30 Apr 2009
9. Remove Install the Garmin GNS530W
A. Remove the Garmin GNS530W
Detail Steps/Work Items Key Items
(1) Open the related NAV COMM circuitbreaker.
(2) Put a 3/32 allen wrench into the access hole
for the locking screw. Engage the screw.
See Figure 10
(3) Turn the screw counter-clockwise until the
unit disengages from the mounting rack.
CAUTION: DO NOT PULL ON THE KNOBS. DO NOT PRY THE FACE-PLATE.
YOU CAN DAMAGE THE UNIT.
CAUTION: DO NOT TOUCH THE CONNECTOR CARD AT THE REAR OF THE
UNIT. THE ELECTROSTATIC CHARGE ON YOUR BODY CAN
DAMAGE THE UNIT.
(6) Pull gently on the sides of the unit to remove
it from the mounting rack.
(7) Install the protective covers on the rear
connectors of the unit.
B. Install the Garmin GNS530W
Detail Steps/Work Items Key Items
(1) Remove the protective covers from the rear
connectors on the unit.
(2) Slide the unit into the rack. Engage the
locking screw so that the latch front lobe
touches the rack.
See Figure 10
(3) Turn the locking screw clockwise so that the
rear lobe engages the mounting rack.
CAUTION: DO NOT OVER-TIGHTEN THE LOCKING SCREW. YOU CAN
DAMAGE THE LOCKING MECHANISM.
 
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